How Does Your Brain Produce That Information?

We have, we don't have batteries in our brains, but we have our sodiums, potassiums. These are little pluses and minuses you might remember from your chemistry class. They're inside the cell and all cells have an electrical voltage around them. And so what we're going to be looking at today is kind of how do cockroaches know when to run away? It's like they turn on the door at night; it's always screwing around before you got there.